The Samsung LNT4665 has significantly better color than previous models, like the Samsung LNS4051D. It also has the ability to fine tune the color controls and it auto-calibrates the PC screen. The blacks are much better as well. It is not a monitor that is perfect for very accurate color computer graphics or video work, but I would definitely say it's "good enough" to do most other work on. Using a Huey color calibrator it was okay, but again significantly better than the LNS4051D. With enough tweaking, you could probably do some relatively accurate graphic/photo/video work, but it would be best to use a small reference monitor as well for pro work. That being said, this is not a professional computer monitor for professions that rely on accurate color.
Using the Component Input for a standard DVD player, and using the "Movie" selection under the "Picture" controls, a very fine image came out from the DVD player. Again, significantly better than previous models.
Using the Antenna IN Cable Input, the TV found the DTV channels from my cable provider and I was able to receive some HD broadcasts, without the use of a special cable box.